Finding the Fourth Proportional to 149,944,391.48, 206,921,730.42 and 83,864,732.02
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Solution
The fourth proportional to 149,944,391.48, 206,921,730.42 and 83,864,732.02 is: 115,732,474.54
Step by Step Solution
- Step 1: Write the proportion equation
149,944,391.48 : 206,921,730.42 = 83,864,732.02 : x - Step 2: Convert to fraction form
149,944,391.48/206,921,730.42 = 83,864,732.02/x - Step 3: Cross multiply
149,944,391.48x = 206,921,730.42 × 83,864,732.02 - Step 4: Simplify right side
149,944,391.48x = 17,353,435,470,270,676 - Step 5: Solve for x
x = 17,353,435,470,270,676/149,944,391.48 - Step 6: Final answer
x = 115,732,474.54
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.